| 摘要 |
A synchronous motor control device includes a vector-control portion including a coordinate transformation portion (2) for coordinate-transforming motor currents (iu, iv, iw) into a d-axis vector component (Id) and a q-axis vector component (Iq), a current command calculation portion (4) for calculating a d-axis current command (Idr) and a q-axis current command (Iqr) based on the vector-transformed respective d-axis and q-axis motor currents (Id, Iq), and a target torque (Tr), a voltage command calculation portion (5) for calculating a d-axis voltage command (Vdr) and a q-axis voltage command (Vqr) based on the d-axis and q-axis current commands (Idr, Iqr), respectively, and an inverse coordinate transformation portion (6) for inversely coordinate-transforming the d-axis and q-axis voltage commands (Vdr, Vqr) into three-phase voltage commands (vur, vvr, vwr), and a disturbance voltage estimating portion (9) for estimating disturbance voltages ('Ved, Veq/ veu, vev, vew) and feed-forwarding an estimated result to the vector-control portion. |
